Mercedes-Benz Stadium showcases retractable roof

ATLANTA - Mercedes-Benz Stadium, the home of Super Bowl LIII, showcased its one-of-a-kind retractable roof on Wednesday.

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Construction crews have been working to complete the final phase of construction on the roof in order for it to be fully operational for the Falcons' 2018 football season and next year's Super Bowl. Now that construction is complete, the stadium showed off the roof Wednesday afternoon with a full opening and closing demonstration. 

Problems kept the roof closed on the $1.5 billion stadium for most of the 2017 season. The unique roof, designed to open like a camera lens, was open only for the Falcons' first home regular-season game against Green Bay on Sept. 17. It was closed for all other NFL and college games, including the Peach Bowl, the Southeastern Conference championship game and the national championship game.

"Fully operational means you will see us go to much more of an open configuration as we designed at the beginning," Falcons president and CEO Rich McKay previously said. "When it's ready to go, we'll be open depending on weather."

The Associated Press contributed to this report.